#778B8B
Closest named color: Light Slate Gray (#778899). oklch(62.1% 0.023 196.6), rgb(119, 139, 139).
Aa
Black text reads best on this color (5.85:1).
About this color
#778B8B is a medium-light close to neutral grey. In OKLCH its lightness is 62%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Light Slate Gray (#778899), ΔE 0.026 away. Black text reads best on it, at 5.85:1.
| Hue family | Neutrals |
| Lightness | medium-light (62%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.85:1 |
| White text | 3.58:1 |
Values
| HEX | #778B8B |
| RGB | rgb(119, 139, 139) |
| HSL | hsl(180, 8%, 51%) |
| OKLCH | oklch(62.1% 0.023 196.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #778B8B | 3.58:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #778B8B | 5.85:1 | AA | Lc 40.6 | Non-text elements, placeholder text |
| #778B8B text on white | 3.58:1 | AA large text | Lc 63.5 | Content text, not long reading |
| #778B8B text on black | 5.85:1 | AA | Lc -38.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEA
oklch(93.5% 0.003 197.1)
-
Step 200
200
#D5DADA
oklch(88.5% 0.005 197.1)
-
Step 300
300
#B9C3C3
oklch(80.9% 0.011 196.9)
-
Step 400
400
#94A4A4
oklch(70.6% 0.018 196.8)
-
Step 500
500 (this color)
#778B8B
oklch(62.1% 0.023 196.6)
-
Step 600
600
#637878
oklch(55.6% 0.025 196.5)
-
Step 700
700
#526565
oklch(49.1% 0.023 196.4)
-
Step 800
800
#435252
oklch(42.6% 0.019 196.5)
-
Step 900
900
#394444
oklch(37.7% 0.014 196.6)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#778B8B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #88898B | 0.024 |
| Deuteranopia (no green cones) | #84868B | 0.022 |
| Tritanopia (no blue cones) | #718C8B | 0.008 |
| Achromatopsia (no color) | #878787 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778B8B
#778B8B
oklch(62.1% 0.023 196.6)
- #948181
#948181
oklch(62.1% 0.023 17.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #778B8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.026
- Steel #738595 ΔE 0.027
- Steel Grey #6F828A ΔE 0.029
- Gray #808080 ΔE 0.031
- Medium Grey #7D7F7C ΔE 0.034
- Blue Grey #758DA3 ΔE 0.035
- Slate Gray #708090 ΔE 0.038
- Silver Lake Blue #778DA9 ΔE 0.045
Use #778B8B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.